I read that it was one of those miniature Qu'rans and the teacher mistook it for a mobile phone.
The Qatar officials took no further action when the teacher gave their explanation.

Are these 'mission20' group a sort of self appointed school Mutaween that police the school?

"Deaths in the Bible. God - 2,270,365
not including the victims of Noah's flood, Sodom and Gomorrah, or the
many plagues, famines, fiery serpents, etc because no specific numbers
were given. Satan - 10."